Re: [Haskelldb-users] Newbie question

[Justin B. <jgb...@gm...>]

2010/11/14 Paul Graphov <gr...@gm...>:

> Hello HaskellDB users,
> First of all, can anybody point some more or less real world example of
> HaskellDB usage,
> containing everything from defining tables and queries to actual operations
> like selecting
> and inserting? This would be very useful because now the only source of
> knowledge for me
> are API docs (which are hard to use without basic understanding) and old
> short pdf file...

Unfortunately that is the best out there. You can browse the unit
tests in the source code at http://code.haskell.org/haskelldb/test
too.

> That works but I wonder should I always explicitly specify type when I
> select fields
> (rec ! uid :: Int) and is it possible to avoid creating dummy type for any
> query
> like BlogUIdRec? If I omit any of them my program fails to compile.

I know I don't have to put signatures on all my queries. Not sure why
that isn't working for you. Make sure you are using a newer version of
GHC (> 6.10) and that you've enabled all language extensions it might
complain about.

If you can put together self-contained sample (or post an error
message from a real file), maybe I or someone else can give a better
answer.

Justin